I prefer organizing in FCP X over anything else. Tags can be created on the finder level and transition over. Also, metadata from the BMCC goes in as well. As long as the footage is in ProRes, raw not yet.
While never having used Speedgrade, I find Resolve very good. Much rather trim in Resolve, never been on a strong point of any version of Final Cut, same goes for keyframing. Sure you have to add on some extra stuff for FCP X, but in some instances you get to choose tools you want, even need. Much prefer this approach over rental only to avoid paying for things that are not necessary. Everyone is different.
As for After Effects, never cared for pre-comps as groups in Motion seem a better approach. They can act as both a pre-comp (minus the headaches) and as an adjustment layer, only affecting layers inside that group. Just beware any groups in there are affected as well.
Keeping an eye on Fusion, no pun intended. Looking at that to replaceAE and Photoshop for more complex work. Of course node based approach can present a challenge but not having to think in layers can be very liberating. Flowcharts are fun to look at. 🙂
Enough of my ranting, carry on!
Less clicking, more editing — the power of X!